CVE-2026-73089

A flaw was found in Browserslist, a configuration tool for front-end development. An attacker can exploit this vulnerability by influencing repeated query values, leading to unbounded memory growth. This issue can cause the application to consume excessive memory, resulting in an out-of-memory process crash and a Denial of Service (DoS) for affected systems.

This is an Important denial of service vulnerability in the browserslist library, which is used across several Red Hat products and services. The flaw allows an attacker to trigger unbounded memory growth by influencing query values, potentially leading to an out-of-memory crash and service unavailability. This is considered Important due to the potential for remote exploitation and significant impact on service stability.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.